public ConsulServiceDiscovery(IOptions <ServiceDiscoveryConsulOptions> options, IServiceDiscoveryCache cache,
IServiceChangeTokenManager manager, ILogger <ConsulServiceDiscovery> logger)
{
_options = options.Value;
_cache = cache;
_manager = manager;
_logger = logger;
}
internal static Uri BuildConsulUri(ServiceDiscoveryConsulOptions options)
{
var builder = new UriBuilder
{
Host = options.Address,
Port = options.Port,
Scheme = options.Scheme
};
return(builder.Uri);
}
private static IConsulClient NewConsulClient(ServiceDiscoveryConsulOptions options)
{
var client = new ConsulClient(c =>
{
c.Address = BuildConsulUri(options);
c.Datacenter = options.Datacenter;
c.WaitTime = options.WaitTime;
});
return(client);
}
private static string CreateOptionUniqueString(ServiceDiscoveryConsulOptions options)
{
var uniqueString = string.Format("{0}-{1}-{2}-{3}", options.Scheme, options.Address, options.Port,
options.Datacenter);
if (options.WaitTime.HasValue)
{
uniqueString = string.Concat(uniqueString, $"-{options.WaitTime.Value.ToString()}");
}
return(uniqueString);
}
public static IConsulClient CreateConsulClient(ServiceDiscoveryConsulOptions options)
{
IConsulClient client;
bool found;
var uniqueString = CreateOptionUniqueString(options);
ConsulClientCacheLock.EnterReadLock();
try
{
found = ConsulClientCache.TryGetValue(uniqueString, out client);
}
finally
{
ConsulClientCacheLock.ExitReadLock();
}
if (found)
{
return(client);
}
ConsulClientCacheLock.EnterWriteLock();
try
{
found = ConsulClientCache.TryGetValue(uniqueString, out client);
if (found)
{
return(client);
}
client = NewConsulClient(options);
ConsulClientCache[uniqueString] = client;
return(client);
}
finally
{
ConsulClientCacheLock.ExitWriteLock();
}
}